Correct Answer : All of the Above
Explanation : To authenticate from the AWS Management Console as a user, you must sign in with your user name and password. To authenticate from the AWS CLI or AWS API, you must provide your access key and secret key or temporary credentials. AWS provides SDK and CLI tools to cryptographically sign your request using your credentials. If you don’t use AWS tools, you must sign the request yourself. Regardless of the authentication method that you use, you might also be required to provide additional security information. For example, AWS recommends that you use multi-factor authentication (MFA) to increase the security of your account.
Source : AWS
